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Finding the Fourth Proportional to 217,329.38, 299,915.62 and 126,748.16

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Solution

The fourth proportional to 217,329.38, 299,915.62 and 126,748.16 is: 174,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,329.38 : 299,915.62 = 126,748.16 : x
  2. Step 2: Convert to fraction form
    217,329.38/299,915.62 = 126,748.16/x
  3. Step 3: Cross multiply
    217,329.38x = 299,915.62 × 126,748.16
  4. Step 4: Simplify right side
    217,329.38x = 38,013,751,173.81
  5. Step 5: Solve for x
    x = 38,013,751,173.81/217,329.38
  6. Step 6: Final answer
    x = 174,913.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.